Automatic Power Transfer Switching for Multi-Source Backup Power
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Solution Overview
Problem
Portable power supplies face challenges in providing high capacity electrical power while maintaining portability and ease of use, with fuel-powered generators causing environmental and health concerns, and existing systems lacking flexibility and safety features for non-specialist users.
Innovation Solution
An electrical device with multiple separable power inputs and outputs, featuring a switching circuit and controller for automatic power source selection and distribution, allowing seamless transitions between power sources and ensuring continuous operation with safety features for non-specialist users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If fuel-powered generators are used to provide high capacity electrical power, then power capacity is improved, but environmental harm and health hazards worsen due to emissions of carbon dioxide and other pollutants
Solution Approach 1:
The system converts the harmful emissions issue into a benefit by using electric power sources that can be connected to the automatic transfer switch, thereby eliminating carbon dioxide and other pollutant emissions while maintaining high power capacity through multiple connectable power sources
2Power
If fuel-powered generators are used to provide high capacity electrical power, then power capacity is improved, but noise and environmental restrictions worsen the usability in certain areas
Solution Approach 1:
The automatic transfer switch provides universal compatibility with multiple types of power sources (grid power, portable generators, battery packs, solar panels), allowing the system to be used in various environments including areas with noise restrictions or emission regulations by simply connecting different power sources as needed
3Power
If multiple power supplies are provided to increase energy capacity, then power capacity is improved, but device complexity and user handling difficulty worsen
Solution Approach 1:
The automatic transfer switch performs self-service by automatically monitoring the status of multiple connected power sources and autonomously selecting and switching between them based on availability and priority settings, eliminating the need for manual intervention and simplifying user interaction despite the presence of multiple power supplies
4Adaptability or versatility
If manual switching between power sources is implemented, then adaptability is improved, but ease of operation worsens due to requiring specialized qualifications
Solution Approach 1:
The system performs automatic monitoring and switching between power sources without requiring user intervention, making the adaptable multi-power-source system easy to operate for non-specialist users by eliminating the need for manual switching operations that would require electrical qualifications
5Reliability
If automatic power transfer is implemented, then reliability is improved, but device complexity worsens due to switching circuit requirements
Solution Approach 1:
The automatic transfer switch acts as an intermediary device that manages the complexity of monitoring and switching between multiple power sources, providing reliable continuous power supply while keeping the switching logic contained within a single dedicated unit that users simply connect to their power sources and loads
Data Source
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AI summary
An electrical device (100), such as an automatic transfer switch or an electrical power distributor, comprises: a first electrical power input (101); a second electrical power input (102); an electrical power output (121, 122, 123); a switching circuit (105) operable to route electrical power from the electrical power inputs to the electrical power output; the switching circuit comprising: a first switching element (111) to allow, when enabled, power flow from the first electrical power input to the electrical power output; and a second switching element (112) to allow, when enabled, power flow from the second electrical power input to the electrical power output; a controller (110) operable to control the switching circuit to switch to the first electrical power input or the second electrical power input for selecting which of said electrical power inputs is to supply electrical power at the electrical power output; wherein the electrical device is operable to determine a timing sequence of switching between the first electrical power input and the second electrical power input.